Sentences with phrase «several decades of data»

The biggest mistake of the establishment was to ignore the longer term cycles and to project forward several decades of data linearly when we are obviously approaching, at or just past a peak in a millennial cycle.
The Tobins Q's average over several decades of data about.72.
Several decades of data suggest R&D is pretty well fixed as a share of the discretionary budget.

Not exact matches

The consumption of spices in the United States has exploded almost three times as fast as the population over the past several decades, data from the USDA reveals.
This data visualization illustrates the changing fat and saturated fat content of school lunches over several decades, based on updated nutrition standards that were informed by our work.
The Johnson & Daviss study of 2005 used a neat little trick: they compared CURRENT CPM data with hospital data that was several DECADES old.
I should look closer at the cancer data, but given the rates of breastfeeding over the last few decades, especially of breastfeeding past 1 year, I would guess that most of the cancer data comes from women with several shorter lactations.
An analysis of a decade's worth of data from radars specifically designed to track airborne insects has revealed unseen hordes crossing parts of the southern United Kingdom — 2 trillion to 5 trillion insects each year, amounting to several thousand tons of biomass, that may travel up to hundreds of kilometers a day.
One hindrance to real - world studies of entire dune fields is the amount of time required to acquire sufficient data: it often takes several decades to compile thorough measurements.
Over several decades, thousands of sets of phenotype data from BXD mice have been collected into databases, ranging from coat color to lifespan.
The confused argument hinges on one data set — the HadCRUT 3V — which is only one of several estimates, and it is the global temperature record that exhibits the least change over the last decade.
Cassini, which began its journey over two decades ago, facilitated the publication of more than 3,000 scientific papers with the data it collected and is responsible for several major discoveries, including liquid methane seas on Titan and evidence of hydrothermal activity on Enceladus.
While these stories (e.g., Partelow, 2016; Rich, 2015) and a highly - publicized recent report (Sutcher et al., 2016) generally discuss teacher shortages as a national problem, we argue that the popular conception of a «teacher shortage» is not borne out by historical data; in fact, the production of newly - minted potential teachers has increased steadily over the past several decades, and only about half of these recent graduates have been hired as public school teachers in a typical year.
Ariel Gold, the Data Program Manager for the Intelligent Transportation Systems Joint Program Office (ITS JPO) is one of only a handful of DOT employees over the past several decades who was named a finalist in a competitive field of outstanding nominations.
The table below contains snapshots of the top twelve holdings of the S&P 500 over the last several decades (note — data from Vanguard S&P 500 Index Fund - VFINX, often used as a proxy for S&P 500).
In the last decade, studies have pointed to some of the adverse effects of neutering in dogs on several health parameters by looking at one disease syndrome in one breed or in pooling data from several breeds.
The exhibition title «BIG DATA» references Tyson's ongoing interest in interconnectivity, universal experiences and the effect of computing and data consumption on himself and society as a whole over the past several decades.
The data estimates prior to that time (for several decades at least) show that the rate of rise was pretty consistant (within the margin of error) with the current rate of rise.
The work in question takes measurements from one locale, and doesn't publish conclusions, rather Doney's statements are giving his opinion about what he read, «Long - term ocean acidification trends are clearly evident over the past several decades in open - ocean time - series and hydrographic survey data, and the trends are consistent with the growth rate of atmospheric carbon dioxide (Dore et al., 2009).»
Long - term ocean acidification trends are clearly evident over the past several decades in open - ocean time - series and hydrographic survey data, and the trends are consistent with the growth rate of atmospheric carbon dioxide (Dore et al., 2009).
Some of those may have overlapped with the proxies used by Moberg (2005), but M05 is one of several dozen NH reconstructions drawn up in the last 15 years, so it's highly likely didn't limit themselves to the data from MO5, which is much older and less extensive than the evidence available from the last decade.
Note the sizeable departure of the data from the linear - plus - cyclic trend over the last several decades.
Combining data from several satellites, we produce a decade - long (2000 to 2010) record documenting the ongoing velocity evolution of nearly all (200 +) of Greenland's major outlet glaciers, revealing complex spatial and temporal patterns.
They carried out a detailed frequency analysis of their data and found characteristic cycles with periods in the range of several decades and centuries.
These glacier and lacustrine data indicate a period of several decades to century length when climate conditions (cool summers, wet winters or both) favoured glacier nourishment and advance across western Canada.
The study team analyzed several million daily high and low temperature readings taken over the span of six decades at about 1,800 weather stations across the country, thereby ensuring ample data for statistically significant results.
One of these models is extrapolated from its 2000 calibration end date and shows a good match to the satellite data, with a projection of continued cooling for several more decades
According to model experiments and consistent with data from past climate changes, this inertia results in a lag of several decades between the imposition of a radiative forcing and a final equilibrium temperature.»
So, the scary stories you often hear from Hollywood and the media, of cities becoming flooded by several metres of sea level rise in a few decades are not based on actual data.
In 1999, the year after the high temperatures of the 1998 El Nino, I became convinced that geologic data of recurring climatic cycles (ice core isotopes, glacial advances and retreats, and sun spot minima) showed conclusively that we were headed for several decades of global cooling and presented a paper to that effect (Fig. 5).
Florida State University's James Elsner said ground data show every decade has been warmer than the last since the middle of the 20th century and satellite data - based observations «show continued warming over the past several decades
Also, many of the colonies where counts do exist were last counted several decades ago, while other counts rely on estimates from late in the breeding season... These concerns over the lack of a baseline population figure for the species have led to the suggestion that emperor penguins should be re-classified by the IUCN from «of least concern'to «data deficient»»
Hi there, I was just wanting to know - several contrarians are effectively stating the data for Antarctic warming shows 0.1 degrees per decade, with an error of + / — 3 degrees?
This task has become easier over the last decade with the development of advanced methods of Data Assimilation commonly used in atmospheric sciences to optimally combine a short forecast with the latest meteorological observations in order to create accurate initial conditions for weather forecasts generated several times a day by the National Weather Services (e.g., [194,195,196,197,198]-RRB-.
They have compiled data on thousands of extreme events over the last several decades.
This interactive shows just how warm average global temperatures have been over the past three decades, particularly on a backdrop of warming that extends back several decades, based on data reported in a recent WMO report.
IMO, the strongest argument for sea ice decline over the last decade for being unusual and at least in part attributable to global warming is this (from Polyakov et al.): The severity of present ice loss can be highlighted by the breakup of ice shelves at the northern coast of Ellesmere Island, which have been stable until recently for at least several thousand years based on geological data.
We also investigated the practices of several other federal agencies which are mandated by Congress to release data Start Printed Page 82711from national surveys while preserving confidentiality and which have been dealing with these issues for decades.
I hope Dr. Caron continues this study and to all early - career sexuality educators, I challenge you to begin your own annual survey — believe me, before you know it you will have several decades of trend data that also will be valuable to human sexuality students and professionals.»
Thus, despite several decades of research, there is little consensus on whether childhood television viewing has beneficial, harmful, or negligible effects on educational achievement.10 This uncertainty is at least partly due to a lack of long - term follow - up data, particularly for school - age children.
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